Elastic needle, liquid discharge assembly and earphone charging box

Abstract

The utility model belongs to the field of electronic equipment, and provides an elastic needle, a liquid discharge assembly and an earphone charging box, the elastic needle comprises a needle tube, a needle head and an elastic piece, the needle tube is internally provided with an accommodating cavity, two opposite ends of the needle tube are respectively a first end and a second end, the first end is provided with a first through hole communicated with the accommodating cavity, and the second end is provided with a second through hole communicated with the accommodating cavity; the second end is further provided with an inclined face facing the containing cavity. The needle head movably penetrates through the accommodating cavity through the first through hole; the elastic piece is arranged in the containing cavity. The liquid discharging assembly comprises an elastic needle and absorbent cotton. The earphone charging box comprises a liquid discharge assembly. According to the vibrating needle, the second through hole communicated with the containing cavity is formed in the second end, when external liquid flows to the bottom in the containing cavity from the first through hole along the side wall of the needle head, the liquid can flow downwards along the inclined face and is finally discharged out of the second through hole, and crystal particles of the liquid are effectively prevented from being accumulated on the inner wall of the needle tube; the problem that liquid forms crystals in the needle tube, and consequently the vibrating needle loses efficacy is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and more specifically, to a spring needle, a liquid discharge assembly and an earphone charging box. Background Art

[0002] The spring pins on the earphone charging box serve as charging contact points for electrically connecting the charging box to the earphones. When the earphones are placed in the charging box, the spring pins contact the earphones, providing the earphones with the current required for charging.

[0003] The needle of a traditional spring needle is movably connected to the syringe, and the needle is generally straight. In this way, external liquids such as sweat can easily penetrate into the inside of the syringe along the side wall of the needle. After a long time, the liquid will form crystals inside the syringe, affecting the movement performance of the needle and causing the earphone charging box to be unable to charge the earphones. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a spring needle, a discharge assembly and an earphone charging box to solve the technical problem in the prior art that the needle tip of the spring needle is generally straight, the external liquid can easily penetrate into the inside of the needle tube along the side wall of the needle tip and form crystals inside the needle tube, thereby affecting the movement performance of the needle tip.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a spring needle, comprising:

[0006] A needle tube, wherein a receiving cavity is provided in the needle tube, and the two opposite ends of the needle tube are respectively a first end and a second end, wherein the first end is provided with a first through hole communicating with the receiving cavity, and the second end is provided with a second through hole communicating with the receiving cavity, and the second end also has an inclined surface facing the receiving cavity;

[0007] a needle, the needle being movably disposed in the receiving cavity through the first through hole; and

[0008] An elastic member is disposed in the receiving cavity, and one end of the elastic member abuts against the inclined surface, and the other end of the elastic member abuts against one end of the needle located in the receiving cavity.

[0009] The beneficial effect of the elastic needle provided by the present application lies in that, compared with the prior art, the elastic needle of the present application has a second through hole connected to the receiving chamber at the second end. When the external liquid flows from the first through hole along the side wall of the needle to the bottom of the receiving chamber, the liquid can flow downward along the inclined surface and finally be discharged from the second through hole, which effectively avoids the accumulation of crystal particles of the liquid on the inner wall of the needle tube, solves the problem of failure of the elastic needle caused by crystallization of the liquid inside the needle tube, that is, reduces the factors affecting the movement performance of the needle, effectively ensures the service life of the elastic needle, and the needle can maintain good electrical contact with the earphone under the action of the elastic member to stably charge the earphone.

[0010] Optionally, the second through hole is circular, and an inner diameter of the second through hole is 0.5 mm-1.2 mm.

[0011] Optionally, a protrusion is provided on the outer wall of the needle tube, and the protrusion is provided close to the second end.

[0012] Optionally, the protrusion is in a ring shape and is arranged along the circumference of the needle tube.

[0013] Optionally, the needle head includes a connecting portion and a contact portion which are connected to each other, the connecting portion is located in the receiving cavity, the contact portion is movably arranged in the first through hole, and at least a part of the contact portion extends out of the first end in the first through hole.

[0014] Optionally, the outer diameter of the connecting portion is greater than the outer diameter of the contact portion, and the outer diameter of the connecting portion is greater than the inner diameter of the first through hole, and the outer diameter of the contact portion is smaller than the inner diameter of the first through hole.

[0015] Optionally, the elastic member is a coil spring, and an outer wall of the elastic member is slidably matched with an inner wall of the accommodating cavity.

[0016] The present application also provides a drainage assembly, comprising:

[0017] A spring needle as described in any one of the above items; and

[0018] The absorbent cotton is in contact with the second end and is used for absorbing liquid discharged from the second through hole.

[0019] The beneficial effect of the discharge component provided by the present application is that, compared with the prior art, by opening a second through hole connected to the receiving chamber at the second end, when the external liquid flows from the first through hole along the side wall of the needle to the bottom of the receiving chamber, the liquid can flow downward along the inclined surface and finally be discharged from the second through hole. The absorbent cotton is used to absorb the liquid discharged from the second through hole, which is conducive to accelerating the diffusion of the liquid and effectively avoiding the accumulation of crystal particles of the liquid on the inner wall of the needle tube, thereby reducing the factors affecting the movement performance of the needle and effectively ensuring the service life of the spring needle.

[0020] The present application also provides an earphone charging box, comprising the above-mentioned drainage assembly.

[0021] The beneficial effect of the earphone charging box provided in the present application is that, compared with the prior art, the above-mentioned drainage component is adopted. The drainage component opens a second through hole connected to the receiving chamber at the second end. When the external liquid flows from the first through hole along the side wall of the needle to the bottom of the receiving chamber, the liquid can flow downward along the inclined surface and finally be discharged from the second through hole. The absorbent cotton is used to absorb the liquid discharged from the second through hole, which is beneficial to accelerate the diffusion of the liquid and effectively avoid the accumulation of crystal particles of the liquid on the inner wall of the needle tube, thereby reducing the factors affecting the movement performance of the needle and effectively ensuring the service life of the elastic needle.

[0022] Optionally, the earphone charging box also includes a circuit board, the circuit board has a first side surface and a second side surface arranged opposite to each other, the circuit board is also provided with a jack running through the first side surface and the second side surface, the second end is inserted into the jack, the first end protrudes out of the first side surface, and the absorbent cotton is attached to the second side surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of the elastic pin provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the vertical cross-sectional structure of the elastic pin provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the three-dimensional structure of a liquid discharge assembly provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of a partial vertical cross-sectional structure of an earphone charging box provided in an embodiment of the present application.

[0028] Description of main reference numerals:

[0029] 100, spring needle; 10, needle tube; 11, receiving cavity; 12, first end; 121, first through hole; 13, second end; 131, second through hole; 132, inclined surface; 14, bump; 20, needle head; 21, connecting part; 22, contact part; 30, elastic member; 200, absorbent cotton; 300, circuit board; 301, first side surface; 302, second side surface; 303, jack. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Please also read Figure 1 and Figure 2 Now, the elastic needle 100 provided in the embodiment of the present application is described. The elastic needle 100 is applied to the earphone charging box. Of course, the elastic needle 100 can also be applied to other electronic devices that require it, such as electronic bracelets, handheld electric fans, etc. The elastic needle 100 includes: a needle tube 10, a needle head 20 and an elastic member 30.

[0037] A receiving cavity 11 is provided in the needle tube 10, and the opposite ends of the needle tube 10 are respectively a first end 12 and a second end 13. The first end 12 is provided with a first through hole 121 communicating with the receiving cavity 11, and the second end 13 is provided with a second through hole 131 communicating with the receiving cavity 11, and the second end 13 also has an inclined surface 132 facing the receiving cavity 11; the needle 20 is movably inserted into the receiving cavity 11 through the first through hole 121; the elastic member 30 is arranged in the receiving cavity 11, and one end of the elastic member 30 abuts against the inclined surface 132, and the other end of the elastic member 30 abuts against one end of the needle 20 located in the receiving cavity 11.

[0038] The second end 13 is used for conducting contact with the circuit board 300 , and the end of the needle 20 located outside the receiving cavity 11 is used for conducting contact with the earphone.

[0039] The needle 20 can move along the axial direction of the needle tube 10 through the first through hole 121. Specifically, when the needle 20 is pressed, the needle 20 can be retracted into the receiving cavity 11 through the first through hole 121 under the action of external force, and the elastic member 30 is compressed, that is, the needle 20 is in a compressed state. After the external force is removed, the elastic member 30 rebounds, and the needle 20 can extend out of the receiving cavity 11 through the first through hole 121 under the elastic force of the elastic member 30, that is, the needle 20 is in a natural state.

[0040] Compared with the prior art, the elastic needle 100 provided in the present application has a second through hole 131 connected to the receiving chamber 11 at the second end 13. When the external liquid flows from the first through hole 121 along the side wall of the needle 20 to the bottom of the receiving chamber 11, the liquid can flow downward along the inclined surface 132 and finally be discharged from the second through hole 131, effectively avoiding the accumulation of crystal particles of the liquid on the inner wall of the needle tube 10, solving the problem that the liquid forms crystals inside the needle tube 10 and causing the elastic needle 100 to fail, that is, reducing the factors affecting the movement performance of the needle 20, effectively ensuring the service life of the elastic needle 100, and the needle 20 can maintain good electrical contact with the earphone under the action of the elastic member 30, so as to stably charge the earphone. In addition, the inclined surface 132 can guide the liquid at the bottom of the receiving chamber to the second through hole 131 to prevent the liquid from accumulating at the bottom of the receiving chamber 11, and at the same time can limit the elastic member 30 to prevent the elastic member 30 from escaping from the receiving chamber 11 from the second through hole 131.

[0041] It should be noted that liquid includes but is not limited to sweat, beverages and other fluid substances that can form crystalline particles.

[0042] Specifically in this embodiment, the cross-sections of the needle tube 10 and the needle head 20 are both circular, and the first through hole 121 and the second through hole 131 are both circular.

[0043] In one embodiment of the present application, the second through hole 131 is circular, and the inner diameter of the second through hole 131 is 0.5 mm-1.2 mm.

[0044] Optionally, the inner diameter of the second through hole 131 is 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm or 1.2 mm.

[0045] By setting the inner diameter of the second through hole 131 to 0.5 mm-1.2 mm, the liquid in the receiving cavity 11 can be discharged promptly and smoothly, and the elastic member 30 can be prevented from falling out of the second through hole 131 .

[0046] In one embodiment of the present application, a protrusion 14 is provided on the outer wall of the needle tube 10 , and the protrusion 14 is provided close to the second end 13 .

[0047] Optionally, the protrusion 14 is in a ring shape and is disposed along the circumference of the needle tube 10 .

[0048] By arranging the protrusion 14 at a position of the needle tube 10 close to the second end 13, when the needle tube 10 is inserted on the circuit board 300, the protrusion 14 abuts against the circuit board 300, effectively ensuring the stability of the connection between the needle tube 10 and the circuit board 300.

[0049] It should be noted that at least a portion of the needle 20 is always located in the receiving cavity 11 . It can be understood that the needle 20 always maintains a state of being movably connected with the needle tube 10 to prevent the needle 20 from completely separating from the needle tube 10 .

[0050] Specifically, the needle 20 includes a connecting portion 21 and a contact portion 22 connected to each other. The connecting portion 21 is located in the receiving cavity 11 , and the contact portion 22 is movably disposed in the first through hole 121 , and at least a portion of the contact portion 22 extends out of the first end 12 in the first through hole 121 .

[0051] Specifically, when the needle head 20 moves relative to the needle tube 10 along the axial direction of the needle tube 10 , the connecting portion 21 moves in the receiving cavity 11 , and the contact portion 22 enters and exits the receiving cavity 11 through the first through hole 121 .

[0052] Furthermore, the outer diameter of the connecting portion 21 is greater than the outer diameter of the contact portion 22 , and the outer diameter of the connecting portion 21 is greater than the inner diameter of the first through hole 121 , and the outer diameter of the contact portion 22 is smaller than the inner diameter of the first through hole 121 .

[0053] In the above technical solution, the outer diameter of the connecting portion 21 is greater than the outer diameter of the contact portion 22, and the outer diameter of the connecting portion 21 is greater than the inner diameter of the first through hole 121. In this way, the connecting portion 21 can be prevented from escaping from the accommodating cavity 11 from the first through hole 121, so that the connecting portion 21 is always arranged in the accommodating cavity 11; and the outer diameter of the contact portion 22 is smaller than the inner diameter of the first through hole 121. In this way, the contact portion 22 can move through the first through hole 121 to enter and exit the accommodating cavity 11.

[0054] In one embodiment of the present application, the elastic member 30 is a coil spring, and the outer wall of the elastic member 30 is slidably matched with the inner wall of the receiving cavity 11 .

[0055] By adopting a coil spring, the elasticity of the coil spring is better; by making the outer wall of the elastic member 30 slide and cooperate with the inner wall of the accommodating cavity 11, the axial deformation of the elastic member 30 is guided, which can ensure the stability of the axial deformation of the elastic member 30 and effectively prevent the elastic member 30 from generating radial deformation.

[0056] See also Figure 3The present application also provides a liquid discharge component, including the elastic needle 100 and the absorbent cotton 200 of any of the above embodiments, the absorbent cotton 200 is in contact with the second end 13, and the absorbent cotton 200 is used to absorb the liquid discharged from the second through hole 131.

[0057] Compared with the prior art, the drainage assembly provided by the present application has a second through hole 131 connected to the accommodating chamber 11 at the second end 13. When the external liquid flows from the first through hole 121 along the side wall of the needle 20 to the bottom of the accommodating chamber 11, the liquid can flow downward along the inclined surface 132 and finally be discharged from the second through hole 131. The absorbent cotton 200 is used to absorb the liquid discharged from the second through hole 131, which is beneficial to accelerate the diffusion of the liquid and effectively avoid the accumulation of crystal particles of the liquid on the inner wall of the needle tube 10, thereby reducing the factors affecting the movement performance of the needle 20 and effectively ensuring the service life of the elastic needle 100.

[0058] See also Figure 4 , the present application also provides an earphone charging box, including the above-mentioned drainage assembly.

[0059] Compared with the prior art, the earphone charging box provided in the present application adopts the above-mentioned drainage component. The drainage component opens a second through hole 131 connected to the accommodating chamber 11 at the second end 13. When the external liquid flows from the first through hole 121 along the side wall of the needle 20 to the bottom of the accommodating chamber 11, the liquid can flow downward along the inclined surface 132 and finally be discharged from the second through hole 131. The absorbent cotton 200 is used to absorb the liquid discharged from the second through hole 131, which is beneficial to accelerate the diffusion of the liquid and effectively avoid the accumulation of crystal particles of the liquid on the inner wall of the needle tube 10, thereby reducing the factors affecting the movement performance of the needle 20 and effectively ensuring the service life of the elastic needle 100.

[0060] In one embodiment of the present application, the earphone charging box also includes a circuit board 300, the circuit board 300 has a first side surface 301 and a second side surface 302 that are relatively arranged, and the circuit board 300 is also provided with a socket 303 that passes through the first side surface 301 and the second side surface 302, the second end 13 is inserted into the socket 303, the first end 12 protrudes out of the first side surface 301, and the absorbent cotton 200 is attached to the second side surface 302.

[0061] Specifically, the second end 13 is inserted into the insertion hole 303 , and the protrusion 14 abuts against the first side surface 301 .

[0062] The earphone charging box also includes a charging base, a box cover and a battery. The charging base is provided with a charging slot for placing the earphones. The box cover is rotatably connected to the charging base. The box cover is rotated to expose or cover the charging slot. The battery, circuit board 300 and absorbent cotton 200 are all arranged inside the charging base. A part of the elastic needle 100 is arranged inside the charging base and is electrically connected to the circuit board 300. Another part of the elastic needle 100 extends out of the charging base toward one side of the box cover. In this way, when the earphone is placed in the charging slot, the needle 20 contacts the earphone to charge the earphone.

[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A spring needle, characterized in that: include: A needle tube, wherein a receiving cavity is provided in the needle tube, and the two opposite ends of the needle tube are respectively a first end and a second end, wherein the first end is provided with a first through hole communicating with the receiving cavity, and the second end is provided with a second through hole communicating with the receiving cavity, and the second end also has an inclined surface facing the receiving cavity; a needle, the needle being movably disposed in the receiving cavity through the first through hole; and An elastic member is disposed in the receiving cavity, and one end of the elastic member abuts against the inclined surface, and the other end of the elastic member abuts against one end of the needle located in the receiving cavity.

2. The spring needle according to claim 1, characterized in that: The second through hole is circular, and the inner diameter of the second through hole is 0.5 mm-1.2 mm.

3. The spring needle according to claim 1, characterized in that: A protrusion is arranged on the outer wall of the needle tube, and the protrusion is arranged close to the second end.

4. The spring needle according to claim 3, characterized in that: The protrusion is in a ring shape and is arranged along the circumference of the needle tube.

5. The spring needle according to claim 1, characterized in that: The needle head includes a connecting portion and a contact portion connected to each other. The connecting portion is located in the receiving cavity. The contact portion is movably arranged in the first through hole, and at least a portion of the contact portion extends out of the first end in the first through hole.

6. The spring needle according to claim 5, characterized in that: The outer diameter of the connecting portion is greater than the outer diameter of the contact portion, and the outer diameter of the connecting portion is greater than the inner diameter of the first through hole, and the outer diameter of the contact portion is smaller than the inner diameter of the first through hole.

7. The elastic needle according to any one of claims 1 to 6, characterized in that: The elastic member is a coil spring, and the outer wall of the elastic member is slidably matched with the inner wall of the receiving cavity.

8. A liquid discharge assembly, characterized in that: include: The spring needle as claimed in any one of claims 1 to 7; and The absorbent cotton is in contact with the second end and is used for absorbing liquid discharged from the second through hole.

9. An earphone charging box, characterized in that: Comprising the drain assembly of claim 8.

10. The earphone charging box according to claim 9, characterized in that: The earphone charging box also includes a circuit board, which has a first side surface and a second side surface arranged opposite to each other. The circuit board is also provided with a jack running through the first side surface and the second side surface, the second end is inserted into the jack, the first end protrudes out of the first side surface, and the absorbent cotton is attached to the second side surface.

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